Diff: main.cpp

Revision:

0:b3b916d72b56

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Nov 26 11:05:33 2009 +0000
@@ -0,0 +1,80 @@
+#include "mbed.h"
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+DigitalOut * leds[4];
+
+class Dimmer {
+public:
+    Dimmer() { 
+        counter = 0;
+        level = 0;
+        which = 0;
+    }
+    
+    void led_dim() {
+        *(leds[which]) = ( counter <= level ) ? 1 : 0;
+        
+        counter++;
+        if( counter > 100 ) { 
+           counter = 0;
+        }
+    }
+    
+    void setLevel(int l) { level = l; }
+    void setWhich(int w) { which = w; }
+    
+private:
+    int counter;
+    int level;
+    int which;
+};
+
+int main() {
+    leds[0] = &myled1;
+    leds[1] = &myled2;
+    leds[2] = &myled3;
+    leds[3] = &myled4;
+
+    int level = 0;
+    int increment = 1;
+    int which = 0;
+    
+    Dimmer dimmer;
+    Ticker timer;
+    
+    timer.attach_us(&dimmer, &Dimmer::led_dim, 20);
+    
+    while(1) {
+        level += increment;
+        
+        if( level >= 100 ) { 
+            which++;
+            if( which > 3 ) {
+                which = 3;
+                increment = -1;
+            }
+            else {
+                level = 0;
+            }
+            dimmer.setWhich( which );
+        }
+        else if( level <= 0 ) {
+            which--;
+            if( which < 0 ) {
+                which = 0;
+                increment = 1;
+            }
+            else {
+                level = 100;
+            }
+            dimmer.setWhich( which );
+        }
+        
+        dimmer.setLevel(level);
+        wait(0.01);
+    }
+}